![](/media/cache/group/160px-Gnome-fs-trash-full.svg.png.50x50_q85.png)
minimizing power on C027
Dependencies: C027_Support mbed
Fork of PowerControl by
Diff: PowerControl/PowerControl.h
- Revision:
- 0:9bd5f1bdb845
- Child:
- 1:21401fc44382
diff -r 000000000000 -r 9bd5f1bdb845 PowerControl/PowerControl.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/PowerControl/PowerControl.h Sat Jan 30 02:23:30 2010 +0000 @@ -0,0 +1,192 @@ +/* mbed PowerControl Library + * Copyright (c) 2010 Michael Wei + */ + +#ifndef MBED_POWERCONTROL_H +#define MBED_POWERCONTROL_H + +//shouldn't have to include, but fixes weird problems with defines +#include "LPC1768/LPC17xx.h" + +//System Control Register +// bit 0: Reserved +// bit 1: Sleep on Exit +#define LPC1768_SCR_SLEEPONEXIT 0x2 +// bit 2: Deep Sleep +#define LPC1768_SCR_SLEEPDEEP 0x4 +// bit 3: Resereved +// bit 4: Send on Pending +#define LPC1768_SCR_SEVONPEND 0x10 +// bit 5-31: Reserved + +//Power Control Register +// bit 0: Power mode control bit 0 (power-down mode) +#define LPC1768_PCON_PM0 0x1 +// bit 1: Power mode control bit 1 (deep power-down mode) +#define LPC1768_PCON_PM1 0x2 +// bit 2: Brown-out reduced power mode +#define LPC1768_PCON_BODRPM 0x4 +// bit 3: Brown-out global disable +#define LPC1768_PCON_BOGD 0x8 +// bit 4: Brown-out reset disable +#define LPC1768_PCON_BORD 0x10 +// bit 5-7 : Reserved +// bit 8: Sleep Mode Entry Flag +#define LPC1768_PCON_SMFLAG 0x100 +// bit 9: Deep Sleep Entry Flag +#define LPC1768_PCON_DSFLAG 0x200 +// bit 10: Power Down Entry Flag +#define LPC1768_PCON_PDFLAG 0x400 +// bit 11: Deep Power Down Entry Flag +#define LPC1768_PCON_DPDFLAG 0x800 +// bit 12-31: Reserved + +//"Sleep Mode" (WFI). +inline void Sleep(void) +{ + __WFI(); +} + +//"Deep Sleep" Mode +inline void DeepSleep(void) +{ + SCB->SCR |= LPC1768_SCR_SLEEPDEEP; + __WFI(); +} + +//"Power-Down" Mode +inline void PowerDown(void) +{ + SCB->SCR |= LPC1768_SCR_SLEEPDEEP; + LPC_SC->PCON &= ~LPC1768_PCON_PM1; + LPC_SC->PCON |= LPC1768_PCON_PM0; + __WFI(); + //reset back to normal + LPC_SC->PCON &= ~(LPC1768_PCON_PM1 | LPC1768_PCON_PM0); +} + +//"Deep Power-Down" Mode +inline void DeepPowerDown(void) +{ + SCB->SCR |= LPC1768_SCR_SLEEPDEEP; + LPC_SC->PCON |= LPC1768_PCON_PM1 | LPC1768_PCON_PM0; + __WFI(); + //reset back to normal + LPC_SC->PCON &= ~(LPC1768_PCON_PM1 | LPC1768_PCON_PM0); +} + +//shut down BOD during power-down/deep sleep +inline void BrownOut_ReducedPowerMode_Enable(void) +{ + LPC_SC->PCON |= LPC1768_PCON_BODRPM; +} + +//turn on BOD during power-down/deep sleep +inline void BrownOut_ReducedPowerMode_Disable(void) +{ + LPC_SC->PCON &= ~LPC1768_PCON_BODRPM; +} + +//turn off brown out circutry +inline void BrownOut_Global_Disable(void) +{ + LPC_SC->PCON |= LPC1768_PCON_BOGD; +} + +//turn on brown out circutry +inline void BrownOut_Global_Enable(void) +{ + LPC_SC->PCON &= !LPC1768_PCON_BOGD; +} + +//turn off brown out reset circutry +inline void BrownOut_Reset_Disable(void) +{ + LPC_SC->PCON |= LPC1768_PCON_BORD; +} + +//turn on brown outreset circutry +inline void BrownOut_Reset_Enable(void) +{ + LPC_SC->PCON &= ~LPC1768_PCON_BORD; +} +//Peripheral Control Register +// bit 0: Reserved +// bit 1: PCTIM0: Timer/Counter 0 power/clock enable +#define LPC1768_PCONP_PCTIM0 0x2 +// bit 2: PCTIM1: Timer/Counter 1 power/clock enable +#define LPC1768_PCONP_PCTIM1 0x4 +// bit 3: PCUART0: UART 0 power/clock enable +#define LPC1768_PCONP_PCUART0 0x8 +// bit 4: PCUART1: UART 1 power/clock enable +#define LPC1768_PCONP_PCUART1 0x10 +// bit 5: Reserved +// bit 6: PCPWM1: PWM 1 power/clock enable +#define LPC1768_PCONP_PCPWM1 0x40 +// bit 7: PCI2C0: I2C interface 0 power/clock enable +#define LPC1768_PCONP_PCI2C0 0x80 +// bit 8: PCSPI: SPI interface power/clock enable +#define LPC1768_PCONP_PCSPI 0x100 +// bit 9: PCRTC: RTC power/clock enable +#define LPC1768_PCONP_PCRTC 0x200 +// bit 10: PCSSP1: SSP interface 1 power/clock enable +#define LPC1768_PCONP_PCSSP1 0x400 +// bit 11: Reserved +// bit 12: PCADC: A/D converter power/clock enable +#define LPC1768_PCONP_PCADC 0x1000 +// bit 13: PCCAN1: CAN controller 1 power/clock enable +#define LPC1768_PCONP_PCCAN1 0x2000 +// bit 14: PCCAN2: CAN controller 2 power/clock enable +#define LPC1768_PCONP_PCCAN2 0x4000 +// bit 15: PCGPIO: GPIOs power/clock enable +#define LPC1768_PCONP_PCGPIO 0x8000 +// bit 16: PCRIT: Repetitive interrupt timer power/clock enable +#define LPC1768_PCONP_PCRIT 0x10000 +// bit 17: PCMCPWM: Motor control PWM power/clock enable +#define LPC1768_PCONP_PCMCPWM 0x20000 +// bit 18: PCQEI: Quadrature encoder interface power/clock enable +#define LPC1768_PCONP_PCQEI 0x40000 +// bit 19: PCI2C1: I2C interface 1 power/clock enable +#define LPC1768_PCONP_PCI2C1 0x80000 +// bit 20: Reserved +// bit 21: PCSSP0: SSP interface 0 power/clock enable +#define LPC1768_PCONP_PCSSP0 0x200000 +// bit 22: PCTIM2: Timer 2 power/clock enable +#define LPC1768_PCONP_PCTIM2 0x400000 +// bit 23: PCTIM3: Timer 3 power/clock enable +#define LPC1768_PCONP_PCQTIM3 0x800000 +// bit 24: PCUART2: UART 2 power/clock enable +#define LPC1768_PCONP_PCUART2 0x1000000 +// bit 25: PCUART3: UART 3 power/clock enable +#define LPC1768_PCONP_PCUART3 0x2000000 +// bit 26: PCI2C2: I2C interface 2 power/clock enable +#define LPC1768_PCONP_PCI2C2 0x4000000 +// bit 27: PCI2S: I2S interface power/clock enable +#define LPC1768_PCONP_PCI2S 0x8000000 +// bit 28: Reserved +// bit 29: PCGPDMA: GP DMA function power/clock enable +#define LPC1768_PCONP_PCGPDMA 0x20000000 +// bit 30: PCENET: Ethernet block power/clock enable +#define LPC1768_PCONP_PCENET 0x40000000 +// bit 31: PCUSB: USB interface power/clock enable +#define LPC1768_PCONP_PCUSB 0x80000000 + +//Powers Up specified Peripheral(s) +inline unsigned int Peripheral_PowerUp(unsigned int bitMask) +{ + return LPC_SC->PCONP |= bitMask; +} + +//Powers Down specified Peripheral(s) +inline unsigned int Peripheral_PowerDown(unsigned int bitMask) +{ + return LPC_SC->PCONP &= ~bitMask; +} + +//returns if the peripheral is on or off +inline bool Peripheral_GetStatus(unsigned int peripheral) +{ + return (LPC_SC->PCONP & peripheral) ? true : false; +} + +#endif \ No newline at end of file